{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xbbea5b88013d1e3826c3a8e8a710b8b5534b74d7f2cb466d7707caf9aa2930ca",
    "signature": "0x3fca990699bd2d4d161751f6a3106f52750d3e0db47acc36457126a68c34e67539dfe2fa8d44411a6223fa1cd510b787c21be07967100e094c40c96adf74ef9f1c",
    "signer": "0xd103093d439D7d4467a023125Bf27Cefae02041D",
    "userId": "271225731"
  }
}